低碘流率多层螺旋CT冠状动脉造影对斑块诊断价值的研究
发布时间:2019-06-05 01:48
【摘要】:目的探讨低碘流率多层螺旋CT(MSCT)冠状动脉造影对斑块诊断的价值。方法收集2013年6月—2014年12月深圳市第四(福田)人民医院行低碘流率MSCT冠状动脉造影的冠心病患者30例为低碘流率组,另选择同时期行正常碘流率MSCT冠状动脉造影的冠心病患者30例为对照组,在相同扫描条件及对比剂浓度下,分别用1 480 mg I/s及1 850 mg I/s碘流率(注射流率分别为4 ml/s及5 ml/s)进行检查,利用工作站软件进行后处理图像,比较两组图像质量及斑块指标、对比剂总量、注射时间。结果对照组与低碘流率组信号-噪音比(SNR)、对比噪音比(CNR)、图像质量、图像锐利程度、斑块面积(PA)、斑块负荷(PB)、斑块偏心指数、狭窄程度(SD)比较,差异均无统计学意义(P0.05)。对照组对比剂总量为(68.5±4.9)ml,低碘流率组对比剂总量为(56.8±6.3)ml,两组比较差异有统计学意义(t=8.067,P0.001)。对照组注射时间为(14.4±1.5)s,低碘流率组注射时间为(14.0±0.9)s,两组比较差异无统计学意义(t=1.282,P=0.205)。结论使用低碘流率进行MSCT冠状动脉造影,不仅可以达到诊断要求的图像质量,还可以减少对比剂使用,减少对比剂肾病等不良反应的发生,具有一定的临床应用价值。
[Abstract]:Objective to evaluate the value of low iodine flow rate multi-slice spiral CT (MSCT) coronary angiography in the diagnosis of plaques. Methods from June 2013 to December 2014, 30 patients with coronary heart disease who underwent low iodine flow rate MSCT coronary angiography in Shenzhen fourth (Futian) people's Hospital were enrolled in the low iodine flow rate group. In addition, 30 patients with coronary heart disease who underwent normal iodine flow rate MSCT coronary angiography at the same time were selected as the control group under the same scanning conditions and contrast agent concentration. The iodine flow rates of 1 480 mg I 鈮,
本文编号:2493163
[Abstract]:Objective to evaluate the value of low iodine flow rate multi-slice spiral CT (MSCT) coronary angiography in the diagnosis of plaques. Methods from June 2013 to December 2014, 30 patients with coronary heart disease who underwent low iodine flow rate MSCT coronary angiography in Shenzhen fourth (Futian) people's Hospital were enrolled in the low iodine flow rate group. In addition, 30 patients with coronary heart disease who underwent normal iodine flow rate MSCT coronary angiography at the same time were selected as the control group under the same scanning conditions and contrast agent concentration. The iodine flow rates of 1 480 mg I 鈮,
本文编号:2493163
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